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P0502 I have P0502 and C0236 no speedometer and service brake system comes on ive replaced the sensor where does the wiring go for that sensor?

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Odometer,speed odometer,and trip not working.replace speed sensor.


Speedometer
The speedometer is an analog gauge that is located in the instrument cluster. The PCM/VCM receives an analog input from the vehicle speed sensor and converts it to a digital signal containing 4,000 pulses per mile (PPM) for the instrument cluster.
The PCM/VCM sends this digital output (4,000 PPM) to the instrument cluster on a designated circuit. These pulses can be measured in Hertz (Hz) using a digital multimeter (DMM) on the AC scale. The PCM/VCM calibration is matched to the final drive and tire size of each vehicle. If the final drive or tire size is changed for any reason, the PCM/VCM must be updated in order to match the new final drive or tire size. If not, the signal will not be accurate for proper speedometer/odometer operation. An incorrect signal can affect the antilock brakes and the cruise control systems.
The speedometer system consists of the instrument cluster, vehicle speed sensor (VSS), PCM/VCM and related wiring. The VSS is a permanent magnet signal generator that sends an analog signal proportional to the propeller shaft speed to the PCM/VCM. The VSS mounts to the transmission tailshaft extension housing on 2-wheel drive (2WD) models and the transfer case output shaft housing on 4-wheel drive (4WD) models.
Repairs to the instrument cluster can only be performed by an authorized instrument cluster service center.

Diagnostic Aids
• An intermittent in the vehicle speed sensor (VSS) circuit may cause an inaccurate speedometer. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
• Check for the following DTCs:
- DTC P0502 Vehicle Speed Sensor (VSS) Circuit Low Input and DTC P0503 Vehicle Speed Sensor (VSS) Circuit Intermittent in Automatic Transmission - 4L60-E
- DTC P0500 Vehicle Speed Sensor (VSS) Circuit in Engine Controls - 4.3L
Step
Action
Value(s)
Yes
No
1
Did you perform the Instrument Cluster Diagnostic System Check?
--
Go to Step 3
Go to Diagnostic System Check - Instrument Cluster
2
Important: If the instrument cluster is completely inoperative, refer to Instrument Cluster Inoperative .
Install a scan tool.
Raise the vehicles drive wheels. Refer to Lifting and Jacking the Vehicle in General Information.
Start the engine.
Place the transmission into drive for automatic transmission and third gear for manual transmission.
Compare the displayed vehicle speed on the Instrument Cluster with the monitored speed on the scan tool.
Does the vehicles speedometer and the scan tool both display 0 km/h (0 mph)?
--
YES - Go to Step 4
NO - Go to Step 3
3
Does the vehicles speedometer approximately agree with the scan tool display?
--
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
Go to Step 4
4
Turn OFF the ignition.
Disconnect the in line connector C101.
Turn ON the ignition.
Test the vehicle speed output (4K) circuit voltage from the in line connector C101 (female side of connector) to a good ground using the DMM J 39200 . Refer to Circuit Testing in Wiring Systems.
Does the DMM display a voltage greater than the specified value?
9.5V
YES - Go to Step 8
No - Go to Step 5
5
Turn OFF the ignition.
Remove the instrument cluster. Refer to Instrument Cluster Replacement
Test the continuity from the vehicle speed sensor signal (4K) circuit at the instrument cluster electrical connector to the in line connector C101. Refer to Testing for Continuity in Wiring Systems.
Does the DMM display continuity?
--
YES - Go to Step 6
NO - Go to Step 10
6
Test the continuity from the vehicle speed sensor signal (4K) circuit to a good ground. Refer to Testing for Continuity in Wiring Systems.
Does the DMM display continuity?
--
YES - Go to Step 11
NO - Go to Step 7
7
Test the instrument cluster harness connector for a poor connection to the instrument cluster. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
YES - Go to Step 17
NO - Go to Step 16
8
Turn OFF the ignition.
Disconnect the PCM/VCM harness connector which contains the vehicle speed sensor signal circuit. Refer to Powertrain Control Module Replacement/Programming in Engine Controls - 2.2L or VCM Replacement/Programming in Engine Controls - 4.3L.
Test the continuity of the vehicle speed sensor signal (4K) circuit from the PCM/VCM harness connector to the in line connector C101 using the DMM J 39200 . Refer to Testing for Continuity in Wiring Systems.
Does the DMM display continuity?
--
YES - Go to Step 9
NO - Go to Step 12
have you ever used a diagnostic trouble flow test chart ? Let me know if you make it this far and then I will send the last 9 steps . It's either a wiring problem or instrument cluster or PCM is bad . And if the PCM is replaced it will need progamming . Dealer only .

Nov 16, 2015 | 2000 Chevrolet Blazer

1 Answer

How to replace speedometer cable on 1992 Toyota pick up?


That particular model does not have a cable, it is an electronic speedometer with a speed sensor mounted in the transmission. Check all the wires coming from it, then the sensor and last check the actual gauge in the dash.Here's a link to check the speed sensor. Repair Guides Rear Wheel Anti lock Brake System Speed Sensor AutoZone... Here's the part and cost,awah... Vehicle Transmission Speed Sensor 1992 Toyota Pickup 2WD 4 Cylinders 2...

Sep 06, 2014 | 1992 Toyota Pickup

2 Answers

I keep getting abs code C0236 and the abs light stays on.What is the most common solution to this problem


I recently replaced all the brakes on my 2002 Chevy S10 P/U Truck & both the ABS Light & the Brake Lights periodically come on. This was happening even before I replaced the brake pads & shoes. I heard that there may be some sequence of steps I can preform in order to solve this problem. Would you please help me?
Roger

Jul 19, 2012 | 2000 Chevrolet S-10

2 Answers

What couses the abs code c0236 and abs light to com on


Have your brakes checked ? Your brake pads could be worn out !

Jul 19, 2012 | Chevrolet S 10 Cars & Trucks

1 Answer

2002 CAMRY LE automatic transmission. CHECK ENGINE LIGHT WITH P0500 CODE comes on intermittently. Can feel a small **** when speed hits 10 mph and then at 20 mph. Took to a service station and mechanic...


for the p0500, the solution:
The simplest thing to do is to reset the code and see if it comes back.
i know this tool is helpful for your car.
Next, check all wiring and connectors that lead to the speed sensor. The location of the sensor depends on your vehicle. The sensor could be on the rear axle, transmission, or perhaps the wheel hub (brake) assembly.
If the wiring and connectors are OK, then check the voltage at the speed sensor. Again, the exact procedure wil depend on your make and model of vehicle.
If everything looks OK, replace the sensor.

Jul 22, 2011 | 2002 Toyota Camry

1 Answer

Trubleshooting p0502 honda element


P0502 is a Vehicle speed sensor issue:
P0502 Description The vehicle speed sensor outputs a 4 pulse signal for every revolution of the rotor shaft, which is rotated by the transmission output shaft via the driven gear. After this signal is converted into a more precise rectangular waveform by the waveform shaping circuit inside the combination meter, it is then transmitted to the ECM. The ECM determines the vehicle speed based on the frequency of these pulse signals.

speed_sensor.gif Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Speedometer may not work properly
- Transmission shifting problem Possible Causes - Vehicle speed sensor harness or connectors is open or shorted
- Vehicle speed sensor
- Combination meter
- Faulty ECM.

Jul 13, 2011 | 2003 Honda Element

1 Answer

The SERVICE BRAKE SYSTEM light comes on when driving and stays on


i had a customer with a 2004 gmc sierra 2500hd 2wd that stated that the srevice brake system light came on while driving. the transmission would shift hard and erratic plus the speedometer was erratic. the check engine light came on with two codes p0502 and p0503(vehicle speed sensor A low input and vehicle speed sensor A intermittent/erratic. i replaced both vehicle speed sensors mounted on the driver's side of the transmission. both of the speed sensors were the same. test drove the truck after and all issue were solved.

Feb 22, 2010 | 2003 GMC Yukon Denali

3 Answers

1995 Buick Lesabre Speedo inop


It may be a faulty speedometer with a short inside, or a short on speedometer wirings or connector.

Whenever car vibration cause the wiring to short, there you lose speedometer and trans functionality.

You need to access the speedometer connector and wirings to
instrument panel to fix this.

Feb 01, 2009 | 1995 Buick LeSabre

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